HVAC News

Is it really a fan if it has no blades? That's the question English inventor, James Dyson, asked when he set out to reinvent the common fan three years ago. Called "revolutionary," the fan's tag-line is no blades, no buffeting. While smaller models are presently hitting the global market today, the safe, bladeless fan has enormous commercial and industrial potential for industries seeking quiet cooling technology. Like an aircraft engine, the fan works by accelerating the air that passes over a wing-like airfoil. The negative pressure that results draws in the cooler air that hits your body. No blades means the machine runs smooth and silent.

The Liebert CRV installs within a row of data center equipment racks, providing precision cooling close to the server heat source for the most efficient and effective operation. The system features Liebert iCOM controls, a digital scroll compressor, and EC fans resulting in high reliability and optimized system performance.

Continental Fan's TMK Motorized Impellers are an excellent choice for OEM air handling applications. They are small, compact, and the BC airfoil blade designs provide quiet and highly efficient airflow. Available housed or non-housed with AC or EC motors and airflows ranging to 5,500 cfm.

Harmonic current compensation, inductive, and capacitive power factor correction, as well as load balancing in one device. Schaffner ECOsine™ Active: with the world's shortest response time (<300 us), your Power Quality is continuously improved in the blink of an eye.

Learn more at www.myecosine.com and www.schaffner.com.

Wasting time and dollars from estimating errors? Extech's affordable DT300 is a compact, pro-grade laser distance meter for measuring distance, area, volume, and angles. The bright laser and large, backlit 3-line display simplify target measurements to 164 ft/50 m away with 0.06 in./1.5 mm accuracy — ideal for HVAC installations and retrofits. Compare the DT300…

Looking for a way to reduce boiler room overhead? Consider this family of blowdown separators. Available in eight sizes for boilers ranging from 30 to 2200 hp, compact separators fit into tight industrial spaces. Engineered to reduce natural gas and electric consumption, the separators promise to cut boiler room maintenance costs.

When one Kentucky chemical plant couldn't efficiently operate four 16 to 55 year old boilers, facility managers tried a cost-cutting fingerprint analysis. They discovered that oxygen, air flow, and fuel flow levels fluctuated wildly. The team introduced fan position mechanisms and steam flow measurement devices for immediate savings.

One UK landmark building achieved an "excellent" NEAT rating by introducing a mixed mode of passive natural ventilation and air conditioning cassettes. Engineers drew cool air into the building via insulated ventilation louvers, while forcing warm air out. AC is used only to maintain correct ventilation levels for superior IAQ and annual energy savings.

These centrifugal indoor/outdoor HVAC units are cooling and heating commercial buildings that can't support traditional, bulky, energy-expensive outdoor units. Installed indoors, the engineered units use DC inverter scroll compressor tech. The remote controlled units are available in capacities ranging from 7.1 kW to 25 kW.

Available in CAM and hinge models. Insulated and double gasketed. Dovetail frames are available for metal ductwork, 1 in. duct board, or 1 1/2 in. duct board. Insulated access doors use revolutionary new ECOSE™ Technology. ECOSE Technology is made from rapidly renewable organic materials rather than petroleum-based chemicals commonly used in other insulation products.

Stay at the top of your game with Ruskin's control dampers for severe environments! Designed for peak performance in corrosive, extreme temperature, or high pressure installations, Ruskin dampers outlast the competition. Installations include wastewater treatment, microchip manufacturing, thermal oxidizers, tunnel ventilation, blast protection, nuclear facilities, and more!

The HyBlade® is an innovative hybrid axial fan composed of an aluminum supporting structure and a sleeve made of plastic. The optimized shape of the HyBlade® results in noise reduction and increased efficiency compared to conventional blades. Coupled with our EC technology, energy savings can reach up to 70%!

The PF211 Relative Humidity and Temperature Transmitter offers an accuracy of better than 2%, with 4-20 mA or 0-10 V outputs. The annual stability of less than 1%, interchangeable Hygrosmart sensor, and affordable pricing are ideal for HVAC and building applications where low cost and maintainability are premium requirements. More RH Products.

Commercial chillers cool water. With a reversible chiller, you can produce hot water as well. Equipped with an atypical reversing valve, technicians can control the output of either high or low temperature water. A simple machine with a small footprint, it can handle a capacity of up to 20 tons chilled or heated water (see the video).

HVAC equipment does more than just generate heat; it also generates noise. Now a patent-pending noise reducing solution is available in the form of an all-weather sound-reducing panel system made of non-rusting tempered aluminum. Rodent-proof, the four-by-six ft panels absorb and block most sound waves without impeding air flow.

Energy-efficient commercial and industrial HVAC systems got a green upgrade via a variable speed pump controller. Winner of a 2010 AHR Expo Innovation Award, it applies advanced pumping software and proven algorithms for energy-efficient heating, ventilating, and pressure booster applications. The pump controller also conserves water, earning it a LEED certification.

If you find this subject interesting, subscribe to GlobalSpec's e-Newsletter DirectU2 The world of Pump Technology.

Combating solar heat gain in office spaces isn't all about turning up the AC. It's also about treating your windows with a heat absorbing/reflecting material that can work with your HVAC system. Solar window film systems can be applied directly to the facility window interiors and reduce solar heat up to 80%.

BTE is a specialist in manufacturing low frequency power transformers from Taiwan, and sells a wide range of class 2 transformers. Products include transformers with channel frames, channel frames with an external fuse, and transformers with circuit breakers. Transformers can be designed to fit the customer's needs. Good quality, competitive price, and prompt delivery.

The ACUWATT™875 was designed to be the most flexible Controller for OEM's. Third generation of proven reliability is now available with "open software platform" maximizing OEM's design requirements. Complimentary software and custom design available to qualified OEM's. Code support is available at no charge to all developers.

On May 17-22, Phoenix, AZ will be home to SOLAR 2010. The conference will cover the leading trends in commercial solar energy technologies. With an emphasis on recycling, reducing consumption and conserving energy, the expo is also said to directly reflect the 'new energy' economy. Sponsored in part by the American Solar Energy Society, and featuring exhibits and panels by some of the world's leading engineers and solar manufacturers, the event also attracts educational institutions and researchers.

As mechanical engineers and HVAC techies, you're used to dealing with both flammable and explosive materials on the job-site on a frequent basis. But what about when you head back to your home-sweet-safe-home? Not to blow the myth, but some common items you might pick up at your big box variety store, like a pack of matches, a bullet, or even flashbulbs, can be detonated easier than your average stick of TNT. Check out the video.

Can Geothermal Projects Trigger an Earthquake?

Some engineers say deep drilling engineered geothermal heating projects may be able to trigger seismic activity. Should we limit drilling and fracturing? Do the sustainable energy benefits outweigh the potential for a major seismic event?